body {
  margin: 0;
  padding: 0;
  background-color: #84af9b;
}

.registerBox {
  width: 390px;
  height: 650px;
  background-color: blue;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  border-radius: 20px;
  background-color: #fff;
  overflow: hidden;
}

.registerBox form {
  width: 330px;
  margin: 20px auto 0;
}

.registerBox form > div {
  margin-bottom: 20px;
}

.registerBox form .input-register {
  width: 330px;
  height: 50px;
  padding-left: 30px;
  font-size: 16px;
}

.registerBox form button {
  width: 330px;
  height: 50px;
}

.registerBox .about-register {
  margin: 30px auto 0;
  width: 330px;
  display: flex;
  justify-content: center;
}

.registerBox .about-register a {
  color: #999;
}
